/* roulang page: index */
:root {
            --bg: #080b12;
            --bg-soft: #0e1320;
            --bg-card: rgba(18, 24, 38, 0.78);
            --bg-card-solid: #121827;
            --text: #f6f7fb;
            --text-soft: #b7c0d6;
            --muted: #7f8ba7;
            --primary: #ff3d57;
            --primary-strong: #ff2141;
            --secondary: #6ee7ff;
            --accent: #ffd166;
            --green: #58d68d;
            --border: rgba(255, 255, 255, 0.11);
            --border-strong: rgba(255, 255, 255, 0.18);
            --shadow: 0 26px 80px rgba(0, 0, 0, 0.42);
            --shadow-soft: 0 14px 42px rgba(0, 0, 0, 0.24);
            --radius-xl: 34px;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --container: 1180px;
            --nav-height: 78px;
            --ease: 220ms cubic-bezier(.2, .8, .2, 1);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            text-size-adjust: 100%;
        }

        body {
            min-height: 100vh;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background:
                radial-gradient(circle at 18% 6%, rgba(255, 61, 87, .22), transparent 32%),
                radial-gradient(circle at 82% 14%, rgba(110, 231, 255, .18), transparent 28%),
                linear-gradient(180deg, #080b12 0%, #0a0e18 42%, #070910 100%);
            overflow-x: hidden;
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            pointer-events: none;
            background-image:
                linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
            background-size: 44px 44px;
            mask-image: linear-gradient(to bottom, rgba(0,0,0,.7), transparent 78%);
            z-index: -1;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--ease), background var(--ease), border-color var(--ease), transform var(--ease), opacity var(--ease);
        }

        img, svg {
            max-width: 100%;
            display: block;
        }

        button, input, textarea, select {
            font: inherit;
        }

        button {
            border: 0;
            cursor: pointer;
        }

        input, textarea, select {
            width: 100%;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text);
            background: rgba(255,255,255,.06);
            outline: none;
            transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
        }

        input:focus, textarea:focus, select:focus, button:focus-visible, a:focus-visible {
            outline: 3px solid rgba(110, 231, 255, .38);
            outline-offset: 3px;
        }

        input:focus, textarea:focus, select:focus {
            border-color: rgba(110, 231, 255, .65);
            box-shadow: 0 0 0 4px rgba(110, 231, 255, .12);
            background: rgba(255,255,255,.08);
        }

        .container {
            width: min(var(--container), calc(100% - 40px));
            margin-inline: auto;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--nav-height);
            border-bottom: 1px solid rgba(255,255,255,.09);
            background: rgba(8, 11, 18, .78);
            backdrop-filter: blur(18px);
        }

        .nav-wrap {
            height: var(--nav-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            min-width: max-content;
            font-weight: 900;
            letter-spacing: -0.04em;
        }

        .brand-mark {
            width: 42px;
            height: 42px;
            display: grid;
            place-items: center;
            border-radius: 15px;
            background:
                linear-gradient(135deg, rgba(255, 61, 87, .95), rgba(255, 209, 102, .85)),
                linear-gradient(180deg, rgba(255,255,255,.2), transparent);
            box-shadow: 0 12px 28px rgba(255, 61, 87, .28);
            color: #17050a;
            font-weight: 1000;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.08;
        }

        .brand-text strong {
            font-size: 17px;
        }

        .brand-text span {
            margin-top: 3px;
            font-size: 11px;
            color: var(--muted);
            letter-spacing: .08em;
            font-weight: 700;
        }

        .nav-main {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 12px;
            flex: 1;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            min-height: 38px;
            padding: 0 15px;
            border-radius: 999px;
            color: var(--text-soft);
            font-size: 14px;
            font-weight: 700;
            border: 1px solid transparent;
        }

        .nav-link:hover {
            color: var(--text);
            background: rgba(255,255,255,.06);
            border-color: rgba(255,255,255,.08);
        }

        .nav-link.active {
            color: #fff;
            background: rgba(255, 61, 87, .16);
            border-color: rgba(255, 61, 87, .32);
        }

        .phase-chips {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 6px;
            border: 1px solid var(--border);
            border-radius: 999px;
            background: rgba(255,255,255,.045);
        }

        .phase-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 28px;
            padding: 0 10px;
            border-radius: 999px;
            color: var(--muted);
            font-size: 12px;
            font-weight: 800;
            white-space: nowrap;
        }

        .phase-chip::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: currentColor;
            opacity: .75;
        }

        .phase-chip.live {
            color: #10131a;
            background: linear-gradient(135deg, var(--accent), #fff3bd);
        }

        .nav-search {
            position: relative;
            width: 214px;
        }

        .nav-search input {
            height: 40px;
            padding: 0 14px 0 36px;
            border-radius: 999px;
            font-size: 13px;
        }

        .nav-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--muted);
            font-size: 13px;
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 14px;
            color: var(--text);
            background: rgba(255,255,255,.07);
            border: 1px solid var(--border);
        }

        .menu-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            margin: 4px auto;
            border-radius: 999px;
            background: currentColor;
            transition: transform var(--ease), opacity var(--ease);
        }

        .section {
            padding: 88px 0;
            position: relative;
        }

        .section-tight {
            padding: 64px 0;
        }

        .section-head {
            display: grid;
            grid-template-columns: minmax(0, .9fr) minmax(280px, .5fr);
            align-items: end;
            gap: 34px;
            margin-bottom: 36px;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            width: fit-content;
            margin-bottom: 14px;
            padding: 7px 11px;
            border-radius: 999px;
            border: 1px solid rgba(255,255,255,.12);
            background: rgba(255,255,255,.055);
            color: var(--secondary);
            font-size: 12px;
            font-weight: 900;
            letter-spacing: .08em;
        }

        .eyebrow::before {
            content: "";
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--secondary);
            box-shadow: 0 0 18px rgba(110,231,255,.8);
        }

        h1, h2, h3 {
            line-height: 1.12;
            letter-spacing: -0.055em;
        }

        h1 {
            font-size: clamp(42px, 6.1vw, 84px);
            max-width: 1000px;
        }

        h2 {
            font-size: clamp(30px, 4vw, 54px);
        }

        h3 {
            font-size: 22px;
        }

        p {
            color: var(--text-soft);
        }

        .lead {
            font-size: clamp(16px, 2vw, 20px);
            color: #d5dbeb;
        }

        .section-head p {
            font-size: 16px;
        }

        .btn-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            min-height: 48px;
            padding: 0 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 900;
            border: 1px solid transparent;
            user-select: none;
        }

        .btn-primary {
            color: #15070a;
            background: linear-gradient(135deg, #ff4a62, #ffd166);
            box-shadow: 0 16px 38px rgba(255, 61, 87, .26);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 22px 54px rgba(255, 61, 87, .34);
        }

        .btn-secondary {
            color: var(--text);
            background: rgba(255,255,255,.06);
            border-color: var(--border-strong);
        }

        .btn-secondary:hover {
            transform: translateY(-2px);
            background: rgba(255,255,255,.1);
            border-color: rgba(255,255,255,.26);
        }

        .btn-ghost {
            color: var(--secondary);
            min-height: 42px;
            padding: 0 14px;
            background: transparent;
            border-color: rgba(110, 231, 255, .25);
        }

        .btn-ghost:hover {
            color: #071016;
            background: var(--secondary);
            transform: translateY(-2px);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            width: fit-content;
            padding: 6px 10px;
            border-radius: 999px;
            color: var(--text-soft);
            background: rgba(255,255,255,.07);
            border: 1px solid rgba(255,255,255,.1);
            font-size: 12px;
            font-weight: 800;
        }

        .hero {
            padding: 74px 0 54px;
            min-height: calc(100vh - var(--nav-height));
            display: grid;
            align-items: center;
        }

        .hero-shell {
            position: relative;
            border-radius: clamp(26px, 4vw, 46px);
            overflow: hidden;
            border: 1px solid rgba(255,255,255,.14);
            background:
                linear-gradient(115deg, rgba(255,61,87,.18), transparent 42%),
                radial-gradient(circle at 86% 12%, rgba(255,209,102,.18), transparent 25%),
                rgba(255,255,255,.045);
            box-shadow: var(--shadow);
        }

        .hero-shell::before {
            content: "";
            position: absolute;
            inset: -2px;
            background:
                linear-gradient(90deg, rgba(255,255,255,.16), transparent 18%, transparent 82%, rgba(110,231,255,.14)),
                radial-gradient(circle at 52% 100%, rgba(110,231,255,.16), transparent 38%);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            display: grid;
            grid-template-columns: minmax(0, .96fr) minmax(340px, .64fr);
            gap: 32px;
            align-items: center;
            min-height: 620px;
            padding: clamp(28px, 5vw, 66px);
        }

        .hero-copy {
            display: flex;
            flex-direction: column;
            gap: 24px;
            max-width: 760px;
        }

        .hero-copy .lead {
            max-width: 740px;
        }

        .hero-actions {
            margin-top: 4px;
        }

        .hero-points {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 12px;
            max-width: 760px;
        }

        .data-point {
            min-height: 94px;
            padding: 16px;
            border-radius: 20px;
            background: rgba(255,255,255,.055);
            border: 1px solid rgba(255,255,255,.1);
        }

        .data-point strong {
            display: block;
            font-size: 25px;
            line-height: 1;
            color: #fff;
        }

        .data-point span {
            display: block;
            margin-top: 8px;
            color: var(--muted);
            font-size: 13px;
        }

        .vertical-stage {
            position: relative;
            min-height: 470px;
            display: grid;
            grid-template-columns: .88fr 1fr .76fr;
            align-items: center;
            gap: 14px;
            perspective: 1000px;
        }

        .story-card {
            position: relative;
            overflow: hidden;
            border-radius: 28px;
            min-height: 360px;
            border: 1px solid rgba(255,255,255,.15);
            background:
                linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.03)),
                var(--bg-card-solid);
            box-shadow: 0 18px 58px rgba(0,0,0,.36);
            transform: translateZ(0);
            transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
        }

        .story-card:hover {
            transform: translateY(-8px) rotateX(1.5deg);
            border-color: rgba(255,255,255,.28);
            box-shadow: 0 28px 70px rgba(0,0,0,.46);
        }

        .story-card:nth-child(1) {
            height: 390px;
            margin-top: 44px;
            background:
                linear-gradient(180deg, rgba(255,61,87,.75), rgba(255,61,87,.08) 58%, rgba(255,255,255,.06)),
                radial-gradient(circle at 34% 22%, rgba(255,255,255,.35), transparent 24%),
                #17111a;
        }

        .story-card:nth-child(2) {
            height: 460px;
            background:
                linear-gradient(180deg, rgba(110,231,255,.55), rgba(16,22,35,.18) 54%, rgba(255,255,255,.06)),
                radial-gradient(circle at 68% 18%, rgba(255,209,102,.36), transparent 26%),
                #111827;
        }

        .story-card:nth-child(3) {
            height: 338px;
            margin-bottom: 50px;
            background:
                linear-gradient(180deg, rgba(255,209,102,.58), rgba(255,61,87,.1) 52%, rgba(255,255,255,.06)),
                radial-gradient(circle at 46% 24%, rgba(255,255,255,.24), transparent 20%),
                #15121f;
        }

        .story-content {
            position: absolute;
            inset: auto 16px 16px 16px;
            padding: 16px;
            border-radius: 20px;
            background: rgba(5,8,14,.66);
            border: 1px solid rgba(255,255,255,.13);
            backdrop-filter: blur(14px);
        }

        .story-content strong {
            display: block;
            font-size: 16px;
            line-height: 1.32;
        }

        .story-content span {
            display: block;
            margin-top: 8px;
            color: var(--text-soft);
            font-size: 12px;
            line-height: 1.55;
        }

        .floating-note {
            position: absolute;
            right: 22px;
            top: 26px;
            max-width: 220px;
            padding: 14px 15px;
            border-radius: 18px;
            color: #10131a;
            background: linear-gradient(135deg, var(--accent), #fff0ac);
            box-shadow: 0 18px 42px rgba(255, 209, 102, .18);
            font-size: 13px;
            font-weight: 900;
            z-index: 3;
        }

        .directory-grid {
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 22px;
            align-items: stretch;
        }

        .directory-panel, .card, .quote-card, .pricing-card, .form-card {
            border: 1px solid var(--border);
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-soft);
            backdrop-filter: blur(18px);
        }

        .directory-panel {
            padding: 26px;
        }

        .directory-list {
            display: grid;
            gap: 12px;
            list-style: none;
        }

        .directory-item {
            display: grid;
            grid-template-columns: 48px minmax(0, 1fr) auto;
            gap: 14px;
            align-items: center;
            padding: 16px;
            border-radius: 18px;
            background: rgba(255,255,255,.045);
            border: 1px solid rgba(255,255,255,.08);
            transition: transform var(--ease), background var(--ease), border-color var(--ease);
        }

        .directory-item:hover {
            transform: translateX(4px);
            background: rgba(255,255,255,.07);
            border-color: rgba(255,255,255,.18);
        }

        .dir-icon {
            width: 48px;
            height: 48px;
            display: grid;
            place-items: center;
            border-radius: 16px;
            background: rgba(255,61,87,.14);
            color: var(--primary);
            font-size: 20px;
            font-weight: 1000;
        }

        .directory-item h3 {
            font-size: 18px;
            letter-spacing: -0.03em;
        }

        .directory-item p {
            margin-top: 4px;
            font-size: 14px;
        }

        .dir-arrow {
            width: 34px;
            height: 34px;
            display: grid;
            place-items: center;
            border-radius: 50%;
            color: var(--text);
            background: rgba(255,255,255,.08);
        }

        .side-metric {
            display: grid;
            grid-template-rows: 1fr 1fr;
            gap: 22px;
        }

        .metric-block {
            padding: 28px;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255,255,255,.11);
            background:
                radial-gradient(circle at 90% 10%, rgba(110,231,255,.16), transparent 40%),
                rgba(255,255,255,.045);
        }

        .metric-block strong {
            display: block;
            font-size: clamp(36px, 5vw, 64px);
            line-height: 1;
            letter-spacing: -0.08em;
        }

        .metric-block span {
            display: block;
            margin-top: 10px;
            color: var(--text-soft);
        }

        .value-layout {
            display: grid;
            grid-template-columns: .78fr 1.22fr;
            gap: 22px;
        }

        .value-feature {
            min-height: 100%;
            padding: 30px;
            border-radius: var(--radius-xl);
            background:
                linear-gradient(180deg, rgba(255,61,87,.2), rgba(255,255,255,.045)),
                var(--bg-card-solid);
            border: 1px solid rgba(255,255,255,.12);
            box-shadow: var(--shadow-soft);
        }

        .value-feature h3 {
            font-size: 34px;
            margin-top: 18px;
        }

        .value-feature p {
            margin-top: 14px;
        }

        .value-cards {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 18px;
        }

        .card {
            padding: 24px;
            transition: transform var(--ease), border-color var(--ease), background var(--ease), box-shadow var(--ease);
        }

        .card:hover {
            transform: translateY(-6px);
            border-color: rgba(255,255,255,.22);
            background: rgba(255,255,255,.07);
            box-shadow: 0 20px 54px rgba(0,0,0,.34);
        }

        .card-icon {
            width: 46px;
            height: 46px;
            display: grid;
            place-items: center;
            margin-bottom: 18px;
            border-radius: 16px;
            color: #081017;
            background: linear-gradient(135deg, var(--secondary), #d6fbff);
            font-weight: 1000;
        }

        .card h3 {
            margin-bottom: 10px;
        }

        .card p {
            font-size: 14px;
        }

        .security-strip {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 16px;
        }

        .security-item {
            position: relative;
            padding: 24px 22px;
            overflow: hidden;
            border-radius: var(--radius-lg);
            background: rgba(255,255,255,.05);
            border: 1px solid rgba(255,255,255,.1);
        }

        .security-item::after {
            content: "";
            position: absolute;
            width: 86px;
            height: 86px;
            right: -26px;
            top: -26px;
            border-radius: 50%;
            background: rgba(110,231,255,.1);
        }

        .security-item .shield {
            width: 42px;
            height: 42px;
            display: grid;
            place-items: center;
            margin-bottom: 18px;
            border-radius: 14px 14px 18px 18px;
            background: rgba(88,214,141,.16);
            color: var(--green);
            font-weight: 1000;
        }

        .security-item h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .security-item p {
            font-size: 14px;
        }

        .timeline {
            position: relative;
            display: grid;
            gap: 16px;
            padding-left: 26px;
        }

        .timeline::before {
            content: "";
            position: absolute;
            left: 7px;
            top: 12px;
            bottom: 12px;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), var(--secondary), transparent);
        }

        .timeline-node {
            position: relative;
            display: grid;
            grid-template-columns: 150px minmax(0, 1fr);
            gap: 20px;
            padding: 20px;
            border-radius: var(--radius-lg);
            background: rgba(255,255,255,.05);
            border: 1px solid rgba(255,255,255,.1);
        }

        .timeline-node::before {
            content: "";
            position: absolute;
            left: -25px;
            top: 28px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 6px rgba(255,209,102,.12);
        }

        .timeline-node time {
            color: var(--accent);
            font-size: 13px;
            font-weight: 900;
        }

        .timeline-node h3 {
            font-size: 19px;
            margin-bottom: 8px;
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: 1.15fr .85fr;
            gap: 22px;
        }

        .case-list {
            display: grid;
            gap: 14px;
        }

        .case-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 18px;
            border-radius: 20px;
            background: rgba(255,255,255,.052);
            border: 1px solid rgba(255,255,255,.1);
        }

        .case-index {
            flex: 0 0 auto;
            width: 34px;
            height: 34px;
            display: grid;
            place-items: center;
            border-radius: 50%;
            color: #11131a;
            background: var(--accent);
            font-weight: 1000;
        }

        .case-item h3 {
            font-size: 18px;
            margin-bottom: 6px;
        }

        .case-item p {
            font-size: 14px;
        }

        .quote-card {
            padding: 30px;
            background:
                radial-gradient(circle at 88% 12%, rgba(255,61,87,.2), transparent 34%),
                rgba(255,255,255,.045);
        }

        .quote-card blockquote {
            font-size: 24px;
            line-height: 1.5;
            letter-spacing: -0.04em;
        }

        .quote-card cite {
            display: block;
            margin-top: 22px;
            color: var(--muted);
            font-style: normal;
            font-weight: 800;
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 18px;
        }

        .pricing-card {
            position: relative;
            padding: 26px;
            overflow: hidden;
            transition: transform var(--ease), border-color var(--ease);
        }

        .pricing-card:hover {
            transform: translateY(-6px);
            border-color: rgba(255,255,255,.24);
        }

        .pricing-card.featured {
            border-color: rgba(255,61,87,.4);
            background:
                linear-gradient(180deg, rgba(255,61,87,.18), rgba(255,255,255,.05)),
                var(--bg-card-solid);
        }

        .pricing-card h3 {
            margin-top: 14px;
        }

        .price {
            display: flex;
            align-items: baseline;
            gap: 6px;
            margin: 18px 0 8px;
        }

        .price strong {
            font-size: 42px;
            line-height: 1;
            letter-spacing: -0.08em;
        }

        .price span {
            color: var(--muted);
            font-size: 13px;
        }

        .feature-list {
            display: grid;
            gap: 10px;
            margin: 22px 0;
            list-style: none;
        }

        .feature-list li {
            display: flex;
            gap: 9px;
            color: var(--text-soft);
            font-size: 14px;
        }

        .feature-list li::before {
            content: "✓";
            color: var(--green);
            font-weight: 1000;
        }

        .news-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 22px;
        }

        .news-list {
            display: grid;
            gap: 12px;
            list-style: none;
        }

        .news-link {
            display: grid;
            grid-template-columns: 112px minmax(0, 1fr) auto;
            gap: 18px;
            align-items: center;
            padding: 18px;
            border-radius: 20px;
            border: 1px solid rgba(255,255,255,.1);
            background: rgba(255,255,255,.045);
        }

        .news-link:hover {
            transform: translateX(4px);
            border-color: rgba(110,231,255,.26);
            background: rgba(255,255,255,.07);
        }

        .news-date {
            color: var(--secondary);
            font-size: 13px;
            font-weight: 900;
        }

        .news-link h3 {
            font-size: 18px;
            margin-bottom: 4px;
            letter-spacing: -0.03em;
        }

        .news-link p {
            font-size: 14px;
        }

        .news-arrow {
            color: var(--muted);
            font-weight: 1000;
        }

        .recommend {
            position: sticky;
            top: calc(var(--nav-height) + 18px);
            padding: 24px;
            border-radius: var(--radius-lg);
            background:
                linear-gradient(180deg, rgba(110,231,255,.14), rgba(255,255,255,.045)),
                var(--bg-card-solid);
            border: 1px solid rgba(255,255,255,.11);
        }

        .recommend h3 {
            margin-bottom: 12px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 18px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            min-height: 34px;
            padding: 0 11px;
            border-radius: 999px;
            color: var(--text-soft);
            background: rgba(255,255,255,.06);
            border: 1px solid rgba(255,255,255,.09);
            font-size: 13px;
            font-weight: 800;
        }

        .tag:hover {
            color: #071016;
            background: var(--secondary);
            border-color: transparent;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: .8fr 1.2fr;
            gap: 22px;
            align-items: start;
        }

        .faq-note {
            padding: 28px;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255,255,255,.1);
            background: rgba(255,255,255,.045);
        }

        .faq-list {
            display: grid;
            gap: 12px;
        }

        .faq-item {
            border-radius: 20px;
            border: 1px solid rgba(255,255,255,.1);
            background: rgba(255,255,255,.045);
            overflow: hidden;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 66px;
            padding: 0 20px;
            color: var(--text);
            background: transparent;
            text-align: left;
            font-weight: 900;
        }

        .faq-question:hover {
            background: rgba(255,255,255,.045);
        }

        .faq-question .plus {
            width: 28px;
            height: 28px;
            display: grid;
            place-items: center;
            border-radius: 50%;
            color: #081017;
            background: var(--secondary);
            flex: 0 0 auto;
            transition: transform var(--ease);
        }

        .faq-answer {
            display: none;
            padding: 0 20px 20px;
        }

        .faq-answer p {
            font-size: 14px;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open .plus {
            transform: rotate(45deg);
        }

        .download-section {
            padding-bottom: 96px;
        }

        .download-shell {
            display: grid;
            grid-template-columns: .95fr 1.05fr;
            gap: 24px;
            align-items: stretch;
            padding: clamp(26px, 4vw, 48px);
            border-radius: var(--radius-xl);
            border: 1px solid rgba(255,255,255,.14);
            background:
                radial-gradient(circle at 15% 20%, rgba(255,61,87,.22), transparent 32%),
                radial-gradient(circle at 88% 12%, rgba(110,231,255,.18), transparent 28%),
                rgba(255,255,255,.052);
            box-shadow: var(--shadow);
        }

        .download-copy {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 18px;
        }

        .download-copy h2 {
            max-width: 720px;
        }

        .download-benefits {
            display: grid;
            gap: 10px;
            margin-top: 8px;
            list-style: none;
        }

        .download-benefits li {
            display: flex;
            gap: 9px;
            color: var(--text-soft);
            font-size: 14px;
        }

        .download-benefits li::before {
            content: "●";
            color: var(--accent);
        }

        .form-card {
            padding: 26px;
            background: rgba(8, 11, 18, .58);
        }

        .form-grid {
            display: grid;
            gap: 14px;
        }

        .field label {
            display: block;
            margin-bottom: 8px;
            color: var(--text-soft);
            font-size: 13px;
            font-weight: 800;
        }

        .field input, .field select, .field textarea {
            min-height: 48px;
            padding: 12px 14px;
        }

        .field textarea {
            min-height: 96px;
            resize: vertical;
        }

        .form-hint {
            margin-top: 12px;
            color: var(--muted);
            font-size: 12px;
        }

        .site-footer {
            border-top: 1px solid rgba(255,255,255,.1);
            background: rgba(5, 7, 12, .72);
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.1fr .7fr .7fr;
            gap: 28px;
            padding: 48px 0 34px;
        }

        .footer-brand {
            display: grid;
            gap: 14px;
            max-width: 520px;
        }

        .footer-brand strong {
            font-size: 22px;
            letter-spacing: -0.04em;
        }

        .footer-col h3 {
            font-size: 15px;
            margin-bottom: 14px;
            letter-spacing: 0;
        }

        .footer-links {
            display: grid;
            gap: 10px;
            list-style: none;
        }

        .footer-links a {
            color: var(--muted);
            font-size: 14px;
        }

        .footer-links a:hover {
            color: var(--secondary);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 0 28px;
            border-top: 1px solid rgba(255,255,255,.08);
            color: var(--muted);
            font-size: 13px;
        }

        .mobile-cta {
            position: fixed;
            left: 14px;
            right: 14px;
            bottom: 14px;
            z-index: 90;
            display: none;
            gap: 10px;
            padding: 10px;
            border-radius: 22px;
            border: 1px solid rgba(255,255,255,.14);
            background: rgba(8, 11, 18, .82);
            backdrop-filter: blur(18px);
            box-shadow: 0 18px 50px rgba(0,0,0,.42);
        }

        .mobile-cta .btn {
            flex: 1;
            min-height: 44px;
            padding: 0 12px;
        }

        @media (max-width: 1100px) {
            .nav-search {
                display: none;
            }

            .hero-inner {
                grid-template-columns: 1fr;
            }

            .vertical-stage {
                max-width: 660px;
                margin-inline: auto;
                width: 100%;
            }

            .section-head,
            .directory-grid,
            .value-layout,
            .scenario-grid,
            .news-layout,
            .faq-grid,
            .download-shell {
                grid-template-columns: 1fr;
            }

            .recommend {
                position: static;
            }

            .security-strip {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
        }

        @media (max-width: 820px) {
            :root {
                --nav-height: 70px;
            }

            .container {
                width: min(100% - 28px, var(--container));
            }

            .menu-toggle {
                display: inline-grid;
                place-items: center;
            }

            .nav-main {
                position: fixed;
                left: 14px;
                right: 14px;
                top: calc(var(--nav-height) + 10px);
                display: none;
                flex-direction: column;
                align-items: stretch;
                padding: 14px;
                border-radius: 24px;
                border: 1px solid rgba(255,255,255,.13);
                background: rgba(10, 14, 24, .96);
                box-shadow: var(--shadow);
            }

            .site-header.menu-open .nav-main {
                display: flex;
            }

            .site-header.menu-open .menu-toggle span:nth-child(1) {
                transform: translateY(6px) rotate(45deg);
            }

            .site-header.menu-open .menu-toggle span:nth-child(2) {
                opacity: 0;
            }

            .site-header.menu-open .menu-toggle span:nth-child(3) {
                transform: translateY(-6px) rotate(-45deg);
            }

            .nav-link {
                justify-content: center;
                min-height: 46px;
            }

            .phase-chips {
                justify-content: center;
                overflow-x: auto;
            }

            .hero {
                padding-top: 34px;
                min-height: auto;
            }

            .hero-inner {
                min-height: auto;
                padding: 26px;
            }

            .hero-points,
            .value-cards,
            .pricing-grid,
            .footer-main {
                grid-template-columns: 1fr;
            }

            .section {
                padding: 66px 0;
            }

            .section-tight {
                padding: 48px 0;
            }

            .directory-item {
                grid-template-columns: 44px minmax(0, 1fr);
            }

            .dir-arrow {
                display: none;
            }

            .timeline-node {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .news-link {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .footer-bottom {
                flex-direction: column;
            }

            .mobile-cta {
                display: flex;
            }

            body {
                padding-bottom: 76px;
            }
        }

        @media (max-width: 560px) {
            .brand-text strong {
                max-width: 170px;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
            }

            .brand-text span {
                display: none;
            }

            .brand-mark {
                width: 38px;
                height: 38px;
                border-radius: 13px;
            }

            .hero-inner {
                padding: 20px;
                border-radius: 24px;
            }

            .hero-copy {
                gap: 18px;
            }

            .btn-row {
                flex-direction: column;
                align-items: stretch;
            }

            .btn {
                width: 100%;
            }

            .vertical-stage {
                min-height: 360px;
                grid-template-columns: 1fr 1fr;
            }

            .story-card {
                min-height: 260px;
                border-radius: 22px;
            }

            .story-card:nth-child(1) {
                height: 290px;
                margin-top: 12px;
            }

            .story-card:nth-child(2) {
                height: 330px;
            }

            .story-card:nth-child(3) {
                display: none;
            }

            .floating-note {
                right: 14px;
                top: 14px;
                max-width: 180px;
                font-size: 12px;
            }

            .story-content {
                inset: auto 10px 10px;
                padding: 12px;
                border-radius: 16px;
            }

            .story-content strong {
                font-size: 14px;
            }

            .security-strip {
                grid-template-columns: 1fr;
            }

            .download-shell {
                padding: 22px;
            }

            .form-card {
                padding: 18px;
            }
        }